Detachable pipe and hose coupling.



Patented Apr. 20, 1909.

G JAMES, S. BENSON & W. WILSON. DETAGHABLB PIPE AND HOSE GOUPLING. APPLIQATIOH FILED OCT. 10, 1907. 9 1 8, 858,

" INVENTOR5$- Geo ye \fa/nea SW65 7 4 9 r n? I i k WITNESSES UNITED STArEsPArENr OFFICE.

. GEORGE JAMES, SAMUEL BENSON, AND WILLIAIl/I wiLsoN, OF CHICAGO, ILLIINOIS.

DETAGHAZBLEPIPE AND HOSE GOUPLING.

Specification of Letters Patent.

Application filed October 10,1907. SerialNo. 896,833.

UEL BENSON, and WILLIAM WILsON, citizens of. the United- States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improve,- ments in Detachable Pipe and Hose Couplings, of which the following is aspecification.

Our invention relates to pipe and hose couplings, and the objects thereof are to provide a coupling in which the coupling mem bers. are of identical construction, each of said members being provided with means for locking the same with another cou ling adapted to be secured or released without the use of wrenches or special tools, and in which devices are combined therewith-for automatically draining the matter remaining in the pipe or hose and which is liable otherwise to freeze during intervals of non-service.

Our invention further" and specifically resides in the followingfeatures of construction, arrangement and operation, as will be hereinafter described with reference to the accompanyin drawings forming a part of this specification, in which like numerals are used to designate like parts throughout the figures, and in which y Figure. 1 is an inner far-eview of one ofthe coupling members, Fig. 2 is an outer face view thereof and Fig. 3 is a view partly in -caoh of which comprises elevation and partly in section of a pair of members in a coupled position.

In the practical embodiment of our invention, we provide a' pair of coupling members,-

each of which are identical 'in structure, and a body portionll having an upwardly extending tubular portion 2 ada ted for the reception of a hose or the like thereon. The body port-ion 1 is further provided on one end ilwlth a circular flange 3 extending around t e bore of; said tubular portion 2 and provided with a dovetail slot 4 cut therein and with an extending dovetail projection 5 opposite said slot. The coupling members bemg each of identical construction, their respective slots 4 and projections 5 will en age, locking the flanges 3 against one anot ,r, and'unitin the two coupling members with the bores o the tubular portions 2' in alinement. cou ling members is provided with a heavy spring latch 6 having an angular end 7 arranged through an openingcentrally of its pro ection 5, said latch 6 being curved to extends substantially Each of the.

Patented April 20, 1909; p

lie behind the flange and being adapted to swing upon its angular end 7. t the end of the angular portion 7 of the latch 6 is secured a collar 8 by means ofa transverse pin, said collar beingseated within an enlarged bore in the projection 5 and being adapted to r'otate with said angular portion 7 to prevent the withdrawal 'of the same, and said pin used to lock said collar being inserted by means of an openi g 9 extending transversely of the proj'eot1on5.

The extreme-end of the angular portion 7 Y projection 5 and col ar 8 and is adapted to beyond its respective receive thereon the free end of the latch 6 of the opposing cou ling member, said latch 6 being. adapted to e moved on its ivot to a position shown in Fig. 1 to allow t e projec-' tion 5 to engage within the slot 4 opposite the same, and being then adapted to be moved forwardly upon its pivot to a position shown in Fig. 2, said spring latch'being sov formed as to necessitate the same being sprung on a line with its pivot in order to as-. sociate its depression 10 about the projecting ends of the angular portion 7 The coupling members will thus be snugly securely locked while being adapte readil unlocked. To provide against accidenta displacement of the latches 6, which displacerfnent would allow the coupled members to all apart, we providethe flanges-3 with uide brackets 11 in which Said latches,

are s idably' arranged adjacenttheir free ends. Each of the coupling members is further rovided at, the end of the bore of the tubu ar portion 2, and adjacent the flange 3 with an enlarged circular groove adapted to receivetherein a gasket 12 of suitable construction and held therein by means of a' sheet metal retaining ring 13 provided with oppositely extending slotted portions extending transversely thereof frOm .a central point and in staggered relation in order to allow the edges of said ring to be flared outwardly .into engagement respectively, with the gasket 12 and a circular recess 14 extending around the'bore of the tubular portion 2 adjacent said gasket. The rings 13 thus a d to be form means -for holding the gaskets 12 in I place when the members are uncoupled.

Each of the couplin members is provided with abore 15 exten ing at right angles tothe flanges 3 in the casing thereof below the bore of the tubular portion 2, and communieating with saidboreof said tubular portion I her at the inner end of the bore 15.

by an opening 16. The bore 15 is provided adjacent its mouth with a threaded enlargement adapted for'the reception therein of a hollowcasing 17 opening inwardly and pro- ,vided with a valve stem 18 mounted therevalve away from said opening, allowingany material remaining within the bore of the tubular portion 2, to drain downwardly through the 0 ening 16, through a perforated tubular mem er 21- arranged within the bore 15, past the valve 19 into the'casing 17 from whence it escapes by means of a discharge opening 22 leading downwardly through the material of said casing. The casing 17 and the draining mechanism just described may be readily removed by screwing said casing outwardly and withdrawing theoperating parts, said casing 17 being constructed to form a nut 23 on its outer end ada ted for the reception of a wrench or like imp ement. The outer end of the valve stem 18 projects through the material of the casing 17 and is preferably provided onrits outer end with a knob 24' by whichmeans said stem may be thrust inwardly to open the valve 19 in case it becomes necessary to relieve the pressure in the' abut the flange of the o posing member,

said flanges being provide with o positely disposed wedge-shaped slots and wedgeshaped rejectionsada ted to be engaged by -munication with the lower ends of said tubular portions to drain the same when the pressure is released, substantially as described.

2. The combination in a coupling of the character described, of coupling members of identical construction, each comprising a body portion, an upwardly curved tubular portion extending from one end of said body portion, and an outstanding circular flange at the other end of said body portion, to abut the flange of the op osing member, said flanges being rovide' with oppositely disposed wedge-s aped slots and wedge-shaped. projections adapted to be engaged by relatively opposite sidewise movements of said members, said slots beingformed through the entire width of said flanges, said projections being provided with forwardly extending portions beyond said slots, locking members pivotally mounted upon said flanges, and spanning said slots to engage over said iro jecting portions, pressure closed drain'va ves mounted within the bases of said body portions, and in alinement when the-mem ers are locked, and having communication with the lower ends of said tubular portion, and

means to open said valves to drain the said tubular portions, when the pressure is re leased, substantially as described.

In testimony whereof we aflixour signatures in presence of two witnesses.

GEORGE JAMES. SAMUEL BENSON. WILLIAM WILSON.

Witnesses:

BARNEY J. STUART, FRANK O. SHAFER. 

